Very smart TVs quickly captured our daily lives with massive video resources and rich software applications. However, smart TVs have not been omnipotent. We often encounter the problem of black screens on smart TVs. At this time, we need to think calmly. What caused it? Today, Xiao Bian put together a solution to the problem of smart TV black screen sound. Smart TV black screen sound solution method one: The 5V voltage of the power supply is overloaded, the voltage is pulled too low, or the signal processor of the latter stage has a problem, and some circuits are damaged. At this time, it is necessary to remove the problematic components one by one and check for defective components. If the faulty component is replaced, the voltage can be restored to normal. Method Two: The reason why the sound of the smart TV black screen appears may be caused by the abnormality of the power circuit of the TV. This phenomenon shows no response to the panel keys and the indicator light is not on. The first problem with such a problem is to check if the TV 12V and 5V are normal. If the voltage is normal, there may be a problem with the number of stages of the input power circuit. This is generally because the power supply is burned or the voltage regulator chip has a problem. The TV's insurance is burned and the TV's insurance needs to be replaced. Method 3: A black screen with a sound on the smart TV may also be a result of the fact that the backlight of the TV screen is broken, and a bad one of the TV's backlight will lead to a black screen on the TV. The reason for this problem is that the black screen has been raised in advance. The reason for the sound is different. At this time, due to the load imbalance protection of the high voltage board, the TV's backlight will be broken, which will cause the TV high voltage board to enter the load imbalance protection state. Replace the backlight of the TV and troubleshoot the problem. Method 4: The power of the smart TV is normal. It may be that there is a problem with the TV's driving backlight circuit that causes the TV's black screen to have a sound. At this time, the monitor needs to be connected to the host computer for boot check. When you get close to the screen, you can find the screen shows a very dark image, this can prove that the signal processing part of the driver board is normal, then the TV appears The reason for the problem is that the functional circuit of the high voltage control panel switch that drives the backlight malfunctions, so long as the troubleshooting of the functional circuit can restore the screen of the television. Method 5: The phenomenon of black screens and sounds on smart TVs is generally caused by the TV's high-voltage inverter and control triodes being air-sealed. When such problems are encountered, the high-voltage inverters and the control triodes of the backlight board need to be renewed. To add tin welding, in order to solve the black screen sound problems. Gy06 Military Green Ultra Wave Cleaner,Military Green Receiving Antenna,Military Green Terminal Antenna Plastic Antenna Mianyang Ouxun Information Industry Co., Ltd , https://www.ouxunantenna.com
July 11, 2024